Microwave induced visible luminescence

Abstract

An indicator device for detecting high-power microwave radiation is provided, including an electrically-insulating substrate; an electrically-conductive portion disposed on the substrate; and an electroluminescence material disposed on the portion. The electroluminescence material can be zinc-cadmium-sulfide ((ZnCd)S) crystal doped with manganese (Mn) and aluminum (Al) as (ZnCd)S:Mn 2+ ,Al 3+ , zinc sulfide (ZnS) crystal doped with manganese (Mn) as ZnS:Mn 2+ , calcium sulfide (CaS) doped with europium (Eu) as CaS:Eu 2+ , or strontium aluminate (SrAl 2 O 4 ) doped with europium and dysprosium as (SrAl 2 O 4 ):Eu 2+ ,Dy 3+ .

What is claimed is: 
     
       1. An indicator device for detecting high-power microwave radiation, comprising:
 an electrically-insulating substrate; 
 an electrically-conductive portion disposed on said substrate; and 
 an electroluminescence material disposed on said portion, said electroluminescence material including a semiconductor doped with a rare earth element, wherein the microwave radiation illuminates said electroluminescence material to respond by up-converting into visible radiation. 
 
     
     
       2. The device according to  claim 1 , wherein said conductive portion is at least one of gold (Au), silver (Ag) and copper (Cu). 
     
     
       3. The device according to  claim 1 , wherein said electroluminescence material is zinc-cadmium-sulfide ((ZnCd)S) crystal doped with manganese (Mn) and aluminum (Al) as (ZnCd)S:Mn 2+ ,Al 3+ . 
     
     
       4. The device according to  claim 1 , wherein said electroluminescence material is zinc sulfide (ZnS) crystal doped with manganese (Mn) as ZnS:Mn 2+ . 
     
     
       5. The device according to  claim 1 , wherein said electroluminescence material is calcium sulfide (CaS) doped with europium (Eu) as CaS:Eu 2+ . 
     
     
       6. The device according to  claim 1 , wherein said electroluminescence material is strontium aluminate (SrAl 2 O 4 ) doped with europium and dysprosium as (SrAl 2 O 4 ):Eu 2+ ,Dy 3+ . 
     
     
       7. An indicator device for detecting high-power microwave radiation, comprising:
 an electrically-insulating substrate; 
 an electrically-conductive portion disposed on said substrate; and 
 an electroluminescence material disposed on said portion, wherein 
 the microwave radiation illuminates said electroluminescence material to respond by up-converting into visible radiation; and 
 said electroluminescence material is taken from the group consisting of:
 zinc-cadmium-sulfide ((ZnCd)S) crystal doped with manganese (Mn) and aluminum (Al) as (ZnCd)S:Mn 2+ ,Al 3+ , 
 zinc sulfide (ZnS) crystal doped with manganese (Mn) as ZnS:Mn 2+ , 
 calcium sulfide (CaS) doped with europium (Eu) as CaS:Eu 2+ , and 
 strontium aluminate (SrAl 2 O 4 ) doped with europium and dysprosium as (SrAl 2 O 4 ):Eu 2+ ,Dy 3+ . 
 
 
     
     
       8. The device according to  claim 7 , wherein said conductive portion is taken from the group consisting of gold (Au), silver (Ag), and copper (Cu).